i have some questions about that as well. I have flagged a couple of devices that the App. Dash. showed as having attempted to access blocked applications (like Facebook and Myspace). When I go to our network firewall, it does not show any traffic from those devices to those destinations, To be honest, I have more trust in our Fortigate, than the App. Dash.

If an AP identifies and blocks access to Facebook et al., we wouldn't necessarily expect it to appear in the logs for a firewall. If you're using the dash for information only, I would expect things to be logged similarly though...

We also have a Fortigate firewall and we've had some good luck with it, so far. Another case in point: The hive manager showed a student's MAC address to have downloaded 99.41GB in one day. However, our firewall claimed he had done closer to 8GB.

We have a rate limit that goes into effect at 75GB inside of a week so it'd be next to impossible to ever reach 100GB in the same day.